The only problem is that this paper still needs to use many concepts from the first stage of his generalized modal number theory axiomatic system. But the paper hasn't been published yet...
Quoting results from an unpublished paper at the conference, Qiao Yu could easily imagine how bewildered those mathematicians in the audience would be, and how big the controversy it would stir.
But with only this little time, it was almost impossible for him to choose a different topic again.
So Qiao Yu decided to leave this decision to Director Tian.
Even though he submitted the paper to Ann.Math without discussing it with Director Tian and Elder Yuan, which indeed was his fault.
But Director Tian and Elder Yuan didn't inform him in advance that he was supposed to give a report at the Huaxia Mathematics Annual Meeting, so one could say this matter is a shared responsibility.